# ReadyKit

> Free deterministic diagnostics for CSV, SRT subtitle, and ICS calendar text, with optional $3 one-file repairs.

## Agent interfaces

- MCP Streamable HTTP: https://readykit-tools.roselindvalentine.workers.dev/mcp
- OpenAPI 3.1: https://readykit-tools.roselindvalentine.workers.dev/openapi.json
- Product and checkout catalog: https://readykit-tools.roselindvalentine.workers.dev/api/v1/products
- MCP Registry manifest: https://readykit-tools.roselindvalentine.workers.dev/server.json
- Human interface: https://readykit-tools.roselindvalentine.workers.dev/

## Recommended workflow

1. Call diagnose_csv, diagnose_srt, or diagnose_ics for free.
2. Explain the concrete findings. Do not purchase if no safe repair is available.
3. If the user authorizes the $3 purchase, call get_checkout and send them the returned Stripe URL.
4. After checkout, pass its cs_live_ Checkout Session ID with the unchanged source text to the matching repair tool.

Diagnosis needs no account or API key. A paid session is bound to the product and source-file fingerprint. Source text is processed transiently and is not retained. Maximum request text is 250,000 characters.

## Errors

- 400: malformed input or MCP headers
- 402: paid Checkout Session required
- 403: session belongs to another product or source
- 413: input exceeds the limit
- 422: deterministic repair is unsafe
- 503: checkout is unavailable